The outside two columns at the top - above the indentations in the board - are the key to this level. Every time you make a match in these rows, the candies on the bottom outside columns drop through the bottom of the screen. This helps in two ways - it drags down the candies above - including the all important ingredients - and it also helps with cascading matches. The cascading matches help to clear the licorice and add to your points total.
The more licorice that you can clear, the better. Keep reminding yourself that the licorice can be swapped with candies. It's easy to forget that it moves, denying yourself of opportunities to make matches.
Horizontal stripes offer the advantage of clearing candies on all of the outside rows, helping bring down the ingredients on both sides of the board.